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The Descent of Man, and Selection in Relation to Sex
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In this paper, secondary sexual characters of fishes, amphibians and reptiles are presented. But the authors focus on the secondary sexual characteristics of fishes and amphibians rather than the primary sexual characters.Abstract:
Part II. Sexual Selection (continued): 12. Secondary sexual characters of fishes, amphibians and reptiles 13. Secondary sexual characters of birds 14. Birds (continued) 15. Birds (continued) 16. Birds (concluded) 17. Secondary sexual characters of mammals 18. Secondary sexual characters of mammals (continued) 19. Secondary sexual characters of man 20. Secondary sexual characters of man (continued) 21. General summary and conclusion Index.read more
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